Electric heat-regulating apparatus



(No Model.)

. W. A. OONNELLY.

ELECTRIC HEAT REGULATING APPARATUS.

Patented Sept. 13, 1887. FIG.2.

N. rncns, Phuw-Lllhagraphur, Waillmgkm. nv c.

UNITED STATES PATENT OFFICE.

YVILLIAM A. CONNELLY, OF BOSTON, MASSACHUSETTS.

ELECTRIC HEAT-REGULATING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 370,007, datedSeptember 13, 1887,

(No model.)

To aZZ whom it may concern.-

Be it known that I, WILLIAM A. CONNELLY, a citizen of the United States,residing at Boston, in the county of Suffolk and State of Massachusetts,have invented certain new and useful Improvements in Heat-RegulatingApparatus, of which thefollowing is a specification.

The object of my invention is to produce a device for automaticallyregulating the valves of a radiator employed for heating a room or otherplace, so as to maintain an even temperature, or for the regulation ofdampers or ventilators; and the invention consists of certain details ofconstruction, hereinafter fully set forth, and pointed out in theclaims.

Referring to the accompanying drawings,

Figure 1 represents a radiator with a device embodying my inventionapplied thereto. Fig. 2 is a side view of my regulating device, showingthe method of operating the valves. Fig. 8 is an end view of one of thevalves and its attachments. Fig. 4 is a section taken on line 0c of Fig.2. Fig. 5 is a view of the switchplate. Fig. 6 is a view of the rear ofthe switch. Fig. 7 is a perspective view of one of the eccentricquadrants, and Fig. 8 is a top view of the same.

In Fig. 1, A represents a battery, B a thermostat, and O a radiator withmy regulating device applied thereto.

D is aframe fulcrumed on ashaft. d, secured to aoplate attached to thetubes of the radiator E is a worm, or it might be a screw, pivoted tothe frameD by means of set-screws F,which, when adjusted, are held bycheck-nuts G. On the worm E is mounted a wheel, H, free to travel fromend to end of the worm, and connected to the axle of the wheel H is a Ushaped frame, I, that carries a weight, J. At one end of the worm E issecured a sprocket-wheel, K, which, by chain L, is connected to asmaller sprocket-wheel, M, that is driven by an electric motor, N.

P is an eccentric quadrant-shaped piece of metal firmly secured to theshaft d, and P is a similar-shaped piece of metal. These quad rants aredouble or U-shaped, (see Figs. 7 and 8,) and the faces 1) p graduallyincrease in radius from their fulcrum, and the faces of the two are heldin contact with each other by bars a a, one end of each being secured tothe quadrant P and the other ends to the quadrant P, as shown, so that,although the quadrants are free to make a part of a revolution, thefaces will be held in close contact with each other, and one quadrantcannot move without imparting motion to the other. Thus, if the frame Dis tilted to the inclination of the dotted line Q, the quadrant P willbe turned to the position shown in dotted lines and will carry with itthe quadrant P, thereby forcing its fulcrum b down, as shown. The pin bslides in a slot in a plate, 0, secured to the tubes of the radiator 0.Therefore it is guided in a straight line. To the pin 12 are securedrods or bars R R, the outer ends of which are connected to eccentricquadrants S S, fulcrumed to frames T T, secured to valves U U. Theeccentric quadrants S S are connected to other eccentric quadrants, V V,by bars, as described with reference to quadrants P P, and the quadrantsV V are fulcrumed to a block, t, secured to the valvestem WV, a spiralspring, to, being placed between the valve U and block it to assist inraising the valve-stem.

To the frame D is secured a switch-plate. X, (see Fig. 5,)provided withfour points of contact, efg h, and two points, '5 are in contact withtheframe D. The points ef are connected by wires 1 and 2 to the fixedmagnets 7c Z of the electric motor N, the magnets being connected bywire 3, and the points 9 h are connected by wires 4 and 5 to the brushm, which, by wires 6 and 7, connect with the rotating magnets r and s.The two points 13 and 0' connect with the negative pole of the batterythrough frame D and Wire 8.

In front of the switch-plate is secured so as to slide freely the switchY, (see Fig. 6,) provided with six points of contact, 9 10 11 12 13 14,the points 10 and 11 being connected together by a strip of metal, a,and the points 12 13 by a strip of metal,o. The points are by wires 15and 16 connected with two points of contact, 17 and 18, on thethermostat, which latter is connected by wire 19 to the positive pole ofthe battery A.

The switch Y is connected to the plate 0 by a rod, Z, so that as theframe D is tilted and the quadrant P moved, the switch will slide uponthe face of the switch-plate X.

The operation is as follows: Suppose the ap* paratustobeinthepositionshown-thatis, with the valves U Uopen-and thetemperature risestoo high. Then the tongue 3 of the thermostat will be thrown intocontact with point 17, (see Fig. 1,) and the electric current passesfrom the battery A through wire 19 to the thermostat, and thence throughtongue y to the point 17 and through wire 15 to point 9 of the switch,which is now in contact with point 9 of the switch-plate, then throughwire 4 to the brush m and through the revolving magnets 1' s and returnfrom the brush in through Wire 5 to point h, which is in contact withpoint 10 of the switch, through strip a to point 11,which is now incontact with point e, and thence by wire 1 through the fixed magnets Zand back by wire 2 to point], that is now in contact with point 12 oftheswiteh, and thence through strip 1) to point 13, which is in contactwith point j on the frame D, and thence through frame D and wire 8 tothe battery A. The electric current thus passing through the apparatuscauses the magnets rsto revolv'e,and with them the sprocket-wheel M,which, by

chain L, transmits motion to sprocket-wheel K and worm E, and as theworm E revolves the wheel H travels up the same until it passes thecenter of gravity, when thewhole frameD tilts to theinclination ofdotted line Q. The quadrants P P, being pushed back, lowers the fulcrum1), thereby pressing on the rods R B,which force back the quadrants S T,thereby closing the Valves U U, thus shutting off the steam, and at thesame time shifting the switch-board, thereby breaking the currentbetweenthe points j andf and e and h and making connection betweenpoints f and h and g and 1;, the wire 15 being switched off and the wire16 switched into contact, so that when the temperature falls below thedesired point and the tongue 3 of the thermostat is thrown into contactwith the point 18 the electric current will pass through the apparatusso as to revolve the motor N in the opposite direction, thereby tiltingthe frame D back to its first position, and thereby open the valves U U.

Although I have described and shown the apparatus as applied to aradiator, it can be applied to any system of valves or dampers toregulate the temperature of a room or other place.

and an electric motor for imparting a rotary v motion to the worm,substantially as shown, and for the purposesdescribed.

3. The tilting frame D, in which is mounted the worm E. carrying wheelH, and Weight J, in combination with the electric motor N, switch-plateX, and switch Y, substantially as shown, and for thepurposes described.

4:. The tilting frame D, worm E, weight J, electric motor N,switch-plate X, and switch Y, in combination with the eccentricquadrants P P and rods R R, connected to the stems of the valves in suchmanner as to open and close the valves as the frame D is tilted one wayor the other, substantially as shown and described.

5. The switch Y, in combination with the tilting frame D, switch-plateX, and rod Z, attached at one end to the switch and to a fixed point atthe other end, so that as the frame is tilted one way or the other theswitch will be shifted, substantially as shown and described.

6. The eccentric quadrants S V, frame T, valve U, and stem W, incombination with rod R, eccentric quadrants P P, and tilting frame D,for operating the valve, substantially as shown and described.

7. A tilting frame provided with an electricmotor, movable weight, andsuitable mechanism for operating the valves, in combination with athermostat and electric battery, substantially as shown and set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

WILLIAM A. CONNELLY.

WVitnesses:

E. PLANTA, J. GEORGE SELTZER.

